Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1975-06-02
1977-04-26
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
220 75, 229 45, 229 48T, 264266, 264328, 428 35, 428211, B29D 2302, B29F 110
Patent
active
040201406
ABSTRACT:
In making a frusto-conical container from a blank which is seamed at juxtaposed edges by injection molding, the resiliency of the material arising from compression at the concave face on bending the blank is reduced by deforming the material in that face by means of the tools between which the blank is clamped for the injection molding. Thereby the strain on the seam and tendency to go out of shape due to the resilience are reduced.
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Airfix Industries Limited
Anderson Philip
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